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- Komatsu WA250-6 vs. Case 721C
Komatsu WA250-6 vs. Case 721C
11 reasons to buy Komatsu WA250-6:
Sizes
Clearance | 465 mm and 419 mm | 10 % more or 46 mm |
Shovel
Breakout power | 27210 pound and 35005 pound | 22 % less or 7795 pound |
Bucket capacity with top | 2.3 m3 and 1.9 m3 | 17 % more or 0.4 m3 |
Brimmed bucket capacity | 2 m3 and 1.6 m3 | 20 % more or 0.4 m3 |
Operation
Engine oil volume | 23 l. and 20.8 l. | 10 % more or 2.2 l. |
Static tipping weight | 11960 kg and 10533 kg | 12 % more or 1427 kg |
Hydraulic system
Pump bandwidth | 78 l/min and 70.4 l/min | 10 % more or 7.6 l/min |
Unloading time | 1.7 sec and 1.8 sec | 6 % less or 0.1 sec |
Lowering time | 3.6 sec and 5.1 sec | 29 % less or 1.5 sec |
Gear box
Maximum reverse gear | 38 km/h and 27.5 km/h | 28 % more or 10.5 km/h |
Reverse gears number | 4 and 3 | 25 % more or 1 |
13 reasons to buy Case 721C:
Shovel
Unloading ground clearance at maximum lifting | 3010 mm and 2850 mm | 5 % more or 160 mm |
Operation
Fuel Capacity | 204 l. and 186 l. | 9 % more or 18 l. |
Hydraulic system fluid volume | 153.3 l. and 67 l. | 56 % more or 86.3 l. |
Cooling system fluid volume | 32.2 l. and 22 l. | 32 % more or 10.2 l. |
Front axle / differential fluid volume | 28 l. and 18 l. | 36 % more or 10 l. |
Rear axle / differential fluid volume | 22 l. and 18 l. | 18 % more or 4 l. |
Turn radius | 5250 mm and 12060 mm | 56 % less or 6810 mm |
Motor
Effective power | 113.3 kW and 103 kW | 9 % more or 10.3 kW |
Full power | 123 kW and 104 kW | 15 % more or 19 kW |
Power measured at | 2200 rev / min and 2000 rev / min | 9 % more or 200 rev |
Displacement | 8.3 l. and 6.7 l. | 19 % more or 1.6 l. |
Hydraulic system
Lifting time | 5.4 sec and 6.3 sec | 14 % less or 0.9 sec |
Gear box
Maximum forward speed | 38.9 km/h and 38 km/h | 2 % more or 0.9 km/h |
Neutral reasons:
Sizes
Between tyres width | 2470 mm and 2530 mm |
Height to cab upper part | 3200 mm and 3260 mm |
Wheelbase | 2900 mm and 2900 mm |
Hinge axis maximum height | 3795 mm and 3810 mm |
Length with bucket on ground level | 7055 mm and 6890 mm |
Shovel
Shovel width | 2685 mm and 2620 mm |
Operation
Working weight | 11545 kg and 13439.9 kg |
Motor
Cylinders number | 6 and 6 |
Aspiration | turbocharging and turbocharging |
Manufacturer | Komatsu and Case |
Model | SAA6D107E-1 and 6T-830 |
Hydraulic system
Type of pump | gear type pump and pumps with twin vanes |
Overflow valve pressure | 3000 lb / sq. inch and 2775 lb / sq. inch |
Gear box
Transmission type | Hydrostatic, 1 pump, 2 electric motors with the speed range selection and 4F / 3R (4 forward / 3 reverse speeds) proportional with electronic control module, with torque measurement, automatic / manual shifting and modulating |
Forward gears number | 4 and 4 |
Images
Sizes
1. Length with bucket on ground level | 7055 mm | 1. Length with bucket on ground level | 6890 mm |
2. Between tyres width | 2470 mm | 2. Between tyres width | 2530 mm |
3. Height to cab upper part | 3200 mm | 3. Height to cab upper part | 3260 mm |
4. Wheelbase | 2900 mm | 4. Wheelbase | 2900 mm |
5. Clearance | 465 mm | 5. Clearance | 419 mm |
6. Hinge axis maximum height | 3795 mm | 6. Hinge axis maximum height | 3810 mm |
Shovel
7. Unloading ground clearance at maximum lifting | 2850 mm | 7. Unloading ground clearance at maximum lifting | 3010 mm |